番红花是鸢尾科植物，花的柱头为名贵的中药材。由于它只开花不结实，所以只能用球茎进行无性繁殖。而在栽培过程中常常出现自培球茎越种越小，甚至不能开花的现象，使番红花的产量明显下降。番红花的每一个母球茎上都生有一个顶芽和许多腋芽，每一个芽的基部都能膨大形成... Crocus is iris plants, stigma of flowers for the expensive Chinese herbal medicines. Because it only flowering is not strong, so only the vegetative propagation of bulbs. In the process of cultivation, self-cultivated bulbous stems often appear smaller and smaller, or even can not flowering, thus significantly reducing the yield of saffron. Each crocus stem of crocus has a top bud and many axillary buds, each of which grows in the base of the bulge ...